US Bridges

US 43 NB over Gunnison Creek

Fair

Mobile County, Alabama · 0.6 MI N JCT I-65 · Structure no. 005855

Built
1957
68 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete
Length
306 ft
9 main spans
Daily traffic
13,891
2023 count
Owner
State
State Highway Agency

About this bridge

US 43 NB over Gunnison Creek is a concrete tee beam carrying US 43 NB over Gunnison Creek in Mobile County, Alabama. It was built in 1957, so it is 68 years old, older than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 13,891 vehicles a day, roughly 11% of them trucks, projected to reach 20,836 by 2043. The structure is 306 ft (93.3 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 43 NB
CrossesGunnison Creek
Location0.6 MI N JCT I-65
RouteU.S. Route 43
CountyMobile County
StateAlabama
Coordinates30.88233, -88.04173
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.4 US tons
Inventory rating24.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadH 20
Structure length306 ft (93.3 m)
Longest span34 ft (10.4 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,891 (2023)
Projected traffic20,836 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 43 NB over Gunnison Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is US 43 NB over Gunnison Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does US 43 NB over Gunnison Creek carry?

About 13,891 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US 43 NB over Gunnison Creek?

The structure is 306 ft (93.3 m) long with a longest span of 34 ft (10.4 m) and a deck 33 ft wide.

Who owns US 43 NB over Gunnison Creek?

It is owned by the State Highway Agency.